differential Spider Siezing - diff Installed - Photo 36430638

With the shafts removed, use a centerpunch to mark the diff bearing caps so you can put them on the same way. It’s important they go back on not only on the same side (left or right) but in the same orientation (top-to-bottom). With the diff still in the housing, give it a good pre-spray with brake parts cleaner to get most of the gear lube off.